Dolphin "Crashers"

You may remember, gentle reader, that both of my Goldfish died in quick succession a few months ago. So, this product is of no value to me, but I still think it's pretty cute.

Dolphin Crashers are plastic dolphins that are split into two pieces; one goes inside the tank and the other on the outside. They stay together magnetically, producing a clever effect.

Thanks to Nerd Approved for the link.